Time and Work Practice Test 4 with solutions

Question : 33 of 40

Marks: +1, -0

Working alone, A and B can do a work in

3 2/7

and

1 7/{16}

days respectively. How long will they if they take while working together?

Solution:

Time taken by A and B =

{23}/7

and

{23}/{16}

Work done by A and B in one day
=

7/{23}+{16}/{23}

{23}/{23}

= 1
So, time taken = 1 day.

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